How severe is CVE-2021-24129?

CVE-2021-24129 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2021-24129 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-24129?

CVE-2021-24129 affects Themify Portfolio Post. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-24129?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-24129 published?

CVE-2021-24129 was published on 2021-03-18 and last updated on 2026-06-17.

CVE-2021-24129

CVE-2021-24129 is a medium-severity vulnerability in Themify Portfolio Post with a CVSS 3.x base score of 5.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
CVSS v2: 3.5
EPSS exploit prediction: 1% (47th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Themify Portfolio Post
Published: 2021-03-18
Last modified: 2026-06-17

Description

Unvalidated input and lack of output encoding in the Themify Portfolio Post WordPress plugin, versions before 1.1.6, lead to Stored Cross-Site Scripting (XSS) vulnerabilities allowing low-privileged users (Contributor+) to inject arbitrary JavaScript code or HTML in posts where the Themify Custom Panel is embedded, which could lead to privilege escalation.

Frequently asked questions

What is CVE-2021-24129?: Unvalidated input and lack of output encoding in the Themify Portfolio Post WordPress plugin, versions before 1.1.6, lead to Stored Cross-Site Scripting (XSS) vulnerabilities allowing low-privileged users (Contributor+) to inject arbitrary JavaScript code or HTML in posts where the Themify Custom Panel is embedded, which could lead to privilege escalation.
How severe is CVE-2021-24129?: CVE-2021-24129 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2021-24129 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-24129?: CVE-2021-24129 affects Themify Portfolio Post. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-24129?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-24129 published?: CVE-2021-24129 was published on 2021-03-18 and last updated on 2026-06-17.

References

https://wpscan.com/vulnerability/c8537e5f-1948-418b-9d29-3cf50cd8f9a6

Affected products (1)

cpe:2.3:a:themify:portfolio_post:*:*:*:*:*:wordpress:*:*

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